anybody used these before

[maevinj]

link

Just curious if anybody has played around with there. Also if anybody has any links to any other usb powered "weapons" please post them. THanks

 

[PorscheMaD911]

Looks like one my friend's got. It's not that great.

 

[QueBert]

looks like it could be fun, if it wasn't so expensive I'd buy one. If I win the lotto I'll buy like 20 of them and hook them to a USB hub and terrorize dogs